Патент USA US2410022код для вставки
Oct.29, 1946. ‘ >.>J.A.¢QQK ' ‘25,410,015 APPARATUS ‘FOR FILLING LIFE PRESERVERS AND THE LIKE FiledvJan. 5, 1944 2 Sheets-Sheet l TOR Wm- M M ATTORNEYS Oct. 29, 1946. J,A_¢o¢K - ' 2,410,015 APPARATUS FOR FILLING LIFE PRESERVERS AND THE LIKE FiledJ-anfs, 1944‘ - 2 sheets-sheet 2 } ATTORNEYS Patented Oct. 29, l946 2,410,015 UNITED STATES PATENT OFFICE 2,410,015 APPARATUS FOR FILLING LIFE PRESERVERS AND THE LIKE James A. Cook, Buffalo, N. Y., assignor to Birma Manufacturing Company, Inc., Buffalo, N. Y. Application January 5, 1944, Serial No. 517,075 13 Claims. (Cl. 226-19) ' 1 2 This invention relates to apparatus for pack ing loose buoyant material, such for example as ?brous materials, into circular casings. ‘ In the manufacture of ring life preservers, the casings have heretofore been ?rst sewn in circu Fig. 8 is a view showing the end of a packed \ casing. Fig. 9 is a fragmentary plan view of a life pre server with the two ends thereof ready for sewing. Fig. 10 is another fragmentary plan view of a .life preserver having the ends of the casingr tele lar form so as to leave open ends and then kapok scoped ready for sewing. or other ?brous material was stuffed by hand into the opposite open ends of the casings. This Fig. 11 is a perspective view of a block which is a very time-consuming operation, since only may be used to hold the ?brous material in the small amounts of kapok can be tamped into the 10 casing. casings at one time. The tamping is generally My improved apparatus operates on casings of curved form, for example, on casings of substan tially circular form, such as the ring life pre is uniformly compressed or packed in all parts of server casing shown in Fig. 5, having open ends life preservers. 15 into which the materialwith which the casings It is an object of this invention to provide an are to be stuffed is inserted, and after completing apparatus bymeans of which buoyant material the packingor stu?ing operation, the two open can be packed into circular casings. A further ends are sewn together as heretofore. Casing A object is to provide an apparatus of this kind by of this type is shown in Fig. 5, and my apparatus means of which the ?brous material may be uni 20 includes a tube of relatively thin metal which‘ formly packed into all parts of the casings. It may be inserted into one end of the casing to ?t is also an object of this invention to provide an fairly snugly within the same. The tube prefer apparatus by means of which the time required ably has approximately the same curvature as for packing buoyant material into circular cas the ?nal curvature of the stuffed casing. The ings is greatly reduced. A further object is to 25 apparatus also includes a ram which is formed to provide an apparatus of this type with power cooperate with the tube to packthe material into actuated means for compressing the buoyant the interior of the tube and the casing. The curved tube and ram may be any desired length, material to uniform density in all parts of the casing. Another object is to provide an appa varying from approximately half of the length ratus of this kind having a curved tube which 30 of the casing A to approximately the full length may be inserted into a portion of the casing and thereof, but preferably the tube is not much more than half the length of the casing, and the two a ram of curved form which enters the tube to halves of‘ the casing are ?lled successively and compact the buoyant material into the casing. independently of each other \by ?rst inserting Other objects and advantages of this invention will appear from the following description and 35 the tube into one half of the casing, then packing the material into the casing and then inserting claims. In the accompanying drawings: the tube into the other half of the casing. While the ?rst half of the casing is being ?lled, a clamp Fig. 1 is a top plan View, partly in section, of or other suitable stopper is provided at approxi an apparatus embodying this invention for use in packing loose buoyant material into substan 40 mately the middle portion of the casing to con tially circular casings. ?ne the ?rst half of the material to the ?rst half of the casing. For example, a clamp may lbe Fig. 2 is a fragmentary front elevation thereof, used, as shown in Figs. 5 and 6, which may in partly in section. clude a pair of rods or bars l5 suitably connected Fig. 3 is a fragmentary View of the end of the 45 at one end, for example, by means of a pivot I6, ram. Fig. 4 is a diagrammatic view showing a valve and having a hook‘ portion I1 adjacent to the and piping for controlling the pneumatic mecha other end of the clamp so that the two rods or bars may be held in clamping engagement with nism for compressing the ?brous material. the casing A, as shown in Fig. 6. After one half Fig. 5 is a top plan view of the casing of a ring life preserver prior to packing loose buoyant 50 of the casing has been packed with the material, done with a stick and it is dif?cult to produce life preservers by this means in which the kapok material into the same. ' Fig. 6 is a fragmentary sectional view thereof, on line E—-6, Fig. 5. the clamp is removed, whereupon the casing will have the appearance shown in Fig. '7, and the other half of the casing may then be operated upon. Fig. 7 is a plan view of a life preserver after While the apparatus shown is primarily con half of the same has been ?lled with buoyant 55 material. . structed for ?lling the casings of ring life‘ pre 2,410,015 4 3 servers with kapok or other buoyant ?brous ma terials, yet it is not intended to limit this inven end of the tube to the other, the stulfed casing being s-u?'iciently ?exible to permit the tube to be bent out of the path of movement of the lever. tion to such use, since the invention is applicable Preferably, however, the tube 20 is of more 01' to devices other than life preservers and for use on materials other than ?brous materials, such 5 less spiral form so that the discharge end of the tube will be out of alinement with the lever, for as chips or granular materials. example, above the lever as clearly shown inlFig. In the accompanying drawings, 25), Figs. 1 and 2. This is desirable because it enables the lever 2, represents the tube of the apparatus, which and ram to swing clear of the stulied half of the may be mounted in ?xed position in any suitable or desired manner. For example, the end of the 10 casing during the stuffing of the second half of the casing without requiring the stu?ed half or" tube which receives the ?brous material may be the casing to be ?exed or bent. It is also easier suitably secured to an upright ?ange or extension to pack the rings uniformly if they do not. have is of a bracket, the base 2| of which is mounted a bend therein to clear the lever 25 and ram 25. on a table 22 or other support. The tube is, con sequently, supported at one end only so that it 15 If the tube 2ii-is of spiral form or inclined as shown in Fig. 2, the ram 25 must be correspond is possible to insert the other end of the tube into ingly inclined or of spiral form, and should be an open end of the casing and then pull the cas mounted on the support in such a manner that ing along the tube until the open end of the cas the head 21 of the ram will follow the contour of ing is approximately at the receiving end of the tube, thus telescoping the casing over the tube, as 20 the tube 20. Any suitable means for producing this movement of the ram may be provided, and clearly shown in Figs. 1 and 2. in the construction shown for this purpose, the 25 represents a ram which may be made of rod lever 26 is rigidly secured at one end thereof to a or bar of metal curved substantially to the same pivot member or pin 3'! which is rotatable in a radius as the middle portion of the tube. One end of this ram is rigidly secured to a suitable 25 cylindrical sleeve 38 which may be formed in tegral with or secured to the base 2! of the brack ram actuating device, which may be in the form of a lever 26, pivoted to swing about an axis con centric with, the tube and the ram. The other et l9 which is secured to the table 22. In order to} provide the vertical movement of the lever and‘ ram, the pivot or bearing pin 31 is provided at end of the ram may be provided with a head 2?. I have found that this head may vary in size and 30 the lower end thereof with an enlargement or drum so having spiral threads 4| formed thereon shape, depending upon the material with which to cooperate with corresponding internal threads the casings are stuffed. When working on kapok formed in a sleeve 42 which may also be formed or other ?brous material, the head should be of integral with or rigidly secured to the base?! of such size as to leave considerable margin between the outer edges of the head and the inner surface 35 the bracket #9. The'pitch of the screw threads of the tube so that loose ?brous material will not 4| must, of course, be such that as the lever :26 is swung in a direction to move the ram into the jam or bind between the head and the tube. The head should also be as large as possible without tube, the ram will rise or move vertically to the causing binding of the ?brous material so that desired extent, so that the head 2? thereof will the fibrous material may be compressed to the 40 remain at substantially the same distance from the walls of the tube 2!} throughout its travel in desired extent by a- single movement of the ram into the tube. When packing the casings with the tube. It will be obvious that when the lever granular material, such as ground cork, the head 23 is swung in a direction to move the ram into should be somewhat larger in size, to leave a and out of the tube, the pivot 31 will be raised or lowered by the screw threads and will produce smaller clearance with the interior of the tube. The lever 26 may be of any suitable or desired a corresponding rising and lowering of the lever length to make it possible to compress the ?brous and of the ram. material within the tube manually to a very con siderable extent. Preferably the ram is also pro vided with suitable means whereby the ?nal pres sure exerted on the ?brous material may be pro If desired, the ram may be made in two parts, the leading or outer part thereof being movable 50 into a position to provide free access to the re ceiving end of the tube 26. Any suitable or de sired construction may be employed for this pur pose, and in the construction illustrated by way may be provided for this purpose, and in the con of example, the end of the rain on which the head struction shown by way of example, the lever 26 55 21 is formed comprises a part :35 which is pivotally is provided with an eye 29 adapted to cooperate mounted on the main or body portion 25 of the with a hook 36 mounted on the end of a piston ram so that this part 45 may be swung upwardly rod or plunger 3| connected with a‘ piston ar vabout a pivot :26, the pivotal connection being ranged in a cylinder 32. This piston may be ac preferably so formedthat when in its lower posi tuated pneumatically or hydraulically. Conse 60 tion, as shown in Fig. 1, the" extension at of the quently, when the piston rod 3| is connected with ram will engage a suitable stop Al, Fig. 3, so that the lever 25, as shown in broken lines in Fig. 1, this extension will form a continuation of the the lever 26 may be actuated by fluid pressure in ram. Any other suitable means for movably the cylinder 32 to produce the ?nal compression mounting the end portion of the ram thereon to of the ?brous material. In order to enable the 65 facilitate access to the receiving end of the tube duced by suitable power operated mechanism. Any suitable or desired power operated means cylinder 32 to adapt itself to the movement of 2!] may be provided. ' , ' the lever 26, the end of the cylinder remote from In the carrying out, the operation of my ap the lever is preferably pivotally mounted at 33, paratus, I divide the amount of ?brous material as shown in Fig. 2 and the other end of the cylin to be packed into the casing into a number of der rests loosely upon a suitable support or bar 70 different substantially equal parts‘. For exam 36, so that the cylinder may move up or down or laterally as may be required by the movement of the lever 26. . , , .' ple, it may be desirable to divide the amount of material to be packed into a half casing into three or more approximately equal parts, the number of parts depending upon the size of the casing. ' Thetube 29 may be arranged horizontally on the table so that the lever may swing from one 75 This is preferably done by weighing the material 2,410,015 5 and dividing it into charges. When the ?rst charge of loose material is stuffed into the tube and the ram forced into the tube to compress the ?brous material, the casing A will be ?lled ap proximately from the clamp shown in Fig. 5, to the line i therein. During the compressing of the ?brous material, it is desirable to press the casing against the tube to resist removal of the casing from the tube. This can be done easily by grasping the casing by hand during the com pressing of the ?brous material, so that the cas ing will only be slid from the tube when the ? brous material is ?rmly compacted within the tube. When the plunger enters the tube, the loose material in the tube is ?rst compressed in the tube approximately to the desired density. Upon further movement of the plunger into the tube, this ?rmly compacted material will then be dis charged from the discharge end of the tube into the casing while the casing slides from the tube; Since the tube is made ‘of thin material and is only slightly smaller in diameter than the cas ing, the ?brous material will expand only to a slight extent on leaving the discharge end of the tube, and will thus exert considerable pressure on the wall of the casing so that the same will be at 52 in Fig. 10, whereupon the ends of the casing may be sewn together in the usual manner. . The actuation of the plunger 3i may be e?ected in any suitable or desired manner by controlling the ?ow oi" ?uid to and from opposite sides of the cylinder 32.‘ In Fig. 4, I have shown diagram matically tubes or conduits t0 and El leading to opposite ends of the cylinder, and a valve 62 which alternately connects the opposite ends of 10 the cylinder with ?uid under pressure from a source of supply connected with the conduit 63. It will be noted that when the movable valve member M is in the position shown in Fig. 4, ?uid pressure is transmitted to the pipe 69 while 15 pressure from the pipe 6| is discharged through the exhaust opening 65 of the valve. When the valve M is swung in a clockwise direction through an angle of about 90 degrees, ?uid pressure will be conducted through the conduit BI and the 20 conduit 60 will be connected to exhaust port 65 of a the valve. Valve 62 may be mounted on or near the table 22, as shown in Figs. 1 and 2, and the valve may have its stem 6'! connected to a hand lever 68, and one end of this lever may be con 25 nected by means of a link 69 to a foot treadle 19 to facilitate the control of the power operated mechanism for moving the lever 26. Any other suitable means for controlling the power for op tightly stuffed. Fibrous material, such as kapok erating this lever may be provided. when compressed into a casing will remain in When life preservers are stuffed with loose ma its compressed condition in the casing without 30 terial by means of‘ the method and apparatus material tendency to again become loosened or herein described, they are of uniform hardness flow out of the tube. Consequently, when the throughout the surface, there being no particu_ plunger is withdrawn after compressing the ?rst charge of ?brous material approximately to the ' any hard or soft spots, so that there will. be the line i shown in Fig. 5, this compressed material 35 minimum of strains on the casing, thus increasing the life of the life preservers. will not change its shape materially. Conse By means of the apparatus described, the buoy~ quently, the second charge of loose, material is ant 0r ?brous material can be quickly and easily inserted into the open end of the tube 20, and packed into the casings and in place of the slow when compressed, the half casing will be ?lled approximately to the line 2 and will also be ap 40 and laborious tamping of the material by hand into the casings, only one movement of the ram proximately half slid off of the tube .20. The is required for each charge of material, thus next charge will ?ll the casing approximately greatly reducing the time required to produce life to the line 3 and the ?nal charge is then com preservers or other stuffed articles. The ?rst part pressed in the tube and discharged into the end of the movement of the ram into the tube 20 can, portion of the casing. Preferably a block of of course, be easily effected by hand, since very wood or other material 50 is placed into the little force is required for the initial compression end of the casing for temporarily holding the ? brous material therein and this block may be ' of the material. After this initial movement, the power is applied to the ram, and since this power held in place in any suitable manner. I have may be kept uniform by control of the ?uid pres found, for example, that one or more skewers 5| sure supplied to the cylinder 32, a uniform com may be pinned through the end of the casing be pacting of all charges of the material will result. yond the outer face of the block tohold the block in place. As the casing becomes ?lled, it is slid off the tube When half of a casing is ?lled with the com by the plunger and in the construction shown, pacted loose material and the same is con?ned 55 the ?lled portion of the casing rests upon the ram 25. In place of gripping the casing by hand to within the casing, for example, by means of the yieldingly hold it on the tube, other gripping block, the clamp i5 is removed and the empty means may, of course, be employed. half of the casing is then slid over the tube 20. I claim as my invention: If the material is tightly stuiied into the casing, 1. Apparatus for packing loose material into it is very desirable to have the tube 2!! of spiral 60 substantially circular open ended casings, includ form, so that no bending or de?ection of the cas ing a tube open at both ends and having a curva ing is necessary to clear the lever 26, which would ture corresponding to that of the casing and result in the bent part of the tube being stuffed which may be inserted into a casing to be ?lled, less tightly than other parts of the tube. The 65 a ram .having a curvature corresponding to that stuf?ng of the empty half of the casing with loose of the tube, means for producing relative move material is then continued as already described ment of said ram and tube in a curved path to in connection with the ?rst half of the tube, and cause relative movement of said ram into and out another block of wood may be placed into the of said tube to compact loose material inserted other end of the casing and held in place by into the tube and to discharge the compacted ma skewers or other means. The ?lled casing is then terial from the tube into the casing. ready for sewing. Before the sewing operation 2. Apparatus for packing loose material into is started, the two blocks of wood are removed substantially circular open ended casings, includ~ from the ends of the casing and one end of the ing a tube open at both ends and having a curva casing is telescoped into the other end, as shown 75 ture corresponding to that of_ the casing and 2,410,015 7 8 about which a casing to be ?lled may be tele is connected and which is pivoted substantially scoped, means for mounting one end of said tube on the axis of curvature of said tube, and a on a ?xed support with the remainder of said plunger actuated by '?uid under pressure and tube in spaced relation to said support, and a ram constructed to be connected with said lever for having a curvature substantially the same as the 5 swinging the same to move said ram into said curvature of the middle portion of said tube and mounted to move into and out of said tube for tube. 8. An apparatus for packing loose ?brous ma-~ terial into substantially circular open ended cas compressing material placed‘ into said end of ings, including a tube having a curvature corre said tube and discharging the same from the 10 sponding to that of the casing and of not mate other end of said tube into said casing. rially more than half the length of the casing, 3. Apparatus for packing loose material into substantially circular openended casings, includ“ said tube being open at both ends and formed to ing a tube open at both ends and having a curva have one end thereof inserted into a casing and ture corresponding to that of the casing and to have ?brous material supplied to the other about which a casing to be ?lled may be tele end thereof, means for securing said other end scoped, a ram having a curvature corresponding of said tube in ?xed relation to the apparatus, and an arc-shaped ram having one end thereof to that of the tube and movable along a curved path into and out of said tube to compact loose adapted to enter into said other end of said tube and having the opposite end of said ram pivoted material inserted into the tube and to discharge on an axis substantially coinciding with the axis the compacted material from the tube into the casing, and power actuated means for producing of curvature of said tube, said ram having a head movement of said ram. of materially larger transverse area than the body portion of said ram. 4. Apparatus for packing loose material into open ended casings of substantially circular form, 9. An apparatus for packing loose ?brous ma said apparatus including a tube open at both 25 terial into substantially circular open ended cas ings, including a tube having a curvature corre ends and having a curvature similar to that of the casing and of a diameter only slightly smailer sponding‘to that of the casing andof not mate rially more than half the length of the casing, than the inside diameter of the casing to be filled and supported in ?xed relation to said apparatus said tube being open at both ends and formed at one end thereof, and a ram for cooperation to have one end thereof inserted into a casing with said tube, said ram being pivoted about an and to have ?brous material supplied to the axis substantially concentric with the axis of curvature of said tube to enable said ram to move other end thereof, means for securing said other end of said tube in ?xed relation to the appa into and out of said supported end of said tube throughout substantially the length of said tube. . 5. An apparatus for packing loose material into substantially circular casings, including a thin tube shaped to ?t snugly inside the casings and. open at both ends and having a curvature sub stantially similar to that of the casings to be 40 ?lled, means for securing one end of said tube to a ?xed support, a ram having a curvature corre sponding to the curvature of the middle portion of said tube and of suf?cient length to extend substantially from one end to the other of said tube, and a lever to which one end of said ram ratus, and an arc-shaped ram having one end thereof adapted to enter into said other endof said tube and having the opposite end of said ram pivoted on an aXis substantially coinciding with the axis of curvature of said tube, said ram hav ing a head of materially larger transverse area than the body portion of said ram, the portion of said ram adjacent to said head being movable relatively to the body portion of said ram to move out of operative relation to said other end of said tube to afford access thereto. 10. An apparatus according to claim 9 char acterized in that the end portion of the ram is is connected and which is pivoted substantially pivoted on the body portion thereof to swing on the axis of curvature of said tube._ relatively to the same to provide access to said other end of said tube, and means for holding said pivoted part of said ram in operative relation _ 6. An apparatus for packing loose material into substantially circular casings, including a thin tube shaped to ?t snugly inside the casings and open at both ends and having a curvature substantially similar to that of the casings to be to the body portion thereof when said ram is inserted in said tube. ' 11. An apparatus for packing loose material ?lled, means for securing one end of said tube to into substantially circular open ended casings, a ?xed support, a ram having a curvature cor including a tube having a curvature correspond responding to the curvature of the middle por ing to that of the casing and of not materially more than half the length of the casing, said tube being open at both ends and formed to have one end thereof inserted into a casing and to have material supplied to the other end there tially on the axis of curvature of said tube, and of, means for securing said other end of said power actuated means adapted to be connected tube in ?xed relation to the apparatus, so that to said lever for imparting movement of the ram said tube occupies a substantially spiral position, into said tube. ' a ram having a, curvature corresponding to the '7. An apparatus for packing loose material into 65 middle portion of said tube and also of substan substantially circular casings, including a thin tially spiral shape, and means for mounting said tube shaped to ?t snugly inside the casings and ram to enable the same to swing into and out of said tube. open at both ends and having a curvature sub stantially similar to that of the casings to be 12. An apparatus for packing loose material ?lled, means for securing one end of said tube 70 into substantially circular open ended casings, to a ?xed support, a ram having a curvature cor including a, tube having a curvature correspond responding to the curvature of the middle por ing to that of the casing and of not materially tion of said tube and of sufficient length to ex more than half the length of the casing, said tube tend substantially from one end to the other of being open at both ends and formed to have one said tube, a lever to which one end of .said ram 75 end thereof inserted into a casing and to ‘have tion of said tube and of su?icient length to ex-. tend substantially from one end to the other of said tube, a lever to which one end of said ram is connected and Which is pivoted substan 60 2,410,015 material supplied to the other end thereof, means for securing said other end of said tube in ?xed 10 13. An apparatus for packing loose material into substantially circular open ended casings, relation to the apparatus, so that said tube occu including a tube open at both ends and of sub— pies the substantially spiral position, a ram hav stantially spiral shape and of a, length not ma ing a curvature corresponding to the middle por Cl terially in excess of half of the length. of the tion of said tube and also of substantially spiral casing, means for mounting the‘lower end of shape, and a pivot pin substantially coaxial with said tube in ?xed relation to the apparatus, a the curvature of said tube and to which said ram ram pivotally mounted substantially concentri is secured, and means ‘for imparting vertical cally With said spiral tube and also of spiral form, movement to said pivot pin during the swinging 10 and means for raising and lowering said ram dur of said ram to cause said ram to swing in a sub ing the swinging of the same into and out of stantially spiral path substantially coinciding said tube. with the middle portion of said tube. JAMES A. COOK.